An increasing number of healthy people use methylphenidate, a psychostimulant that increases dopamine and noradrenaline transmission in the brain, to help them focus over extended periods of time. While methylphenidate has been shown to facilitate some cognitive functions, like focus and distractor-resistance, the same drug might also contribute to cognitive impairment, for example, in creativity. In this study, we investigated whether acute administration of a low oral dose (20 mg) of methylphenidate affected convergent and divergent creative processes in a sample of young healthy participants. Also, we explored whether such effects depended on individual differences in ADHD symptoms and working memory capacity. Contrary to our expectations, methylphenidate did not affect participants' creative performance on any of the tasks. Also, methylphenidate effects did not depend on individual differences in trait hyperactivity-impulsivity or baseline working memory capacity. Thus, although the effects of methylphenidate on creativity might be underestimated in our study due to several methodological factors, our findings do not suggest that methylphenidate impairs people's ability to be creative.

译文

:越来越多的健康人使用哌醋甲酯(一种精神兴奋药,可增加大脑中的多巴胺和去甲肾上腺素的传递),以帮助他们长期专注。尽管已显示哌醋甲酯可促进某些认知功能,如专注力和抗干扰能力,但同一药物也可能导致认知障碍,例如创造力下降。在这项研究中,我们调查了低剂量口服哌醋甲酯(20mg)的急性给药是否会影响年轻健康参与者样本中的收敛和发散创意过程。此外,我们探讨了这种影响是否取决于ADHD症状和工作记忆能力的个体差异。与我们的预期相反,哌醋甲酯并不影响参与者在任何任务上的创造力。同样,哌醋甲酯的作用并不取决于性格亢进冲动或基线工作记忆能力的个体差异。因此,尽管由于多种方法学因素,哌醋甲酯对创造力的影响可能在我们的研究中被低估了,但我们的发现并不表明哌醋甲酯会损害人们的创造力。

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